<template>
  <PageWrapper title="二维码组件使用示例">
    <div class="flex flex-wrap">
      <CollapseContainer
        title="基础示例"
        :canExpand="true"
        class="text-center mb-6 w-1/5 mr-6"
      >
        <QrCode :value="qrCodeUrl" />
      </CollapseContainer>

      <CollapseContainer
        title="渲染成img标签示例"
        class="text-center mb-6 w-1/5 mr-6"
      >
        <QrCode :value="qrCodeUrl" tag="img" />
      </CollapseContainer>

      <CollapseContainer
        title="配置样式示例"
        class="text-center mb-6 w-1/5 mr-6"
      >
        <QrCode
          :value="qrCodeUrl"
          :options="{
            color: { dark: '#55D187' },
          }"
        />
      </CollapseContainer>

      <CollapseContainer
        title="本地logo示例"
        class="text-center mb-6 w-1/5 mr-6"
      >
        <QrCode :value="qrCodeUrl" :logo="LogoImg" />
      </CollapseContainer>

      <CollapseContainer
        title="在线logo示例"
        class="text-center mb-6 w-1/5 mr-6"
      >
        <QrCode
          :value="qrCodeUrl"
          logo="https://vebn.oss-cn-beijing.aliyuncs.com/vben/logo.png"
          :options="{
            color: { dark: '#55D187' },
          }"
        />
      </CollapseContainer>

      <CollapseContainer
        title="logo配置示例"
        class="text-center mb-6 w-1/5 mr-6"
      >
        <QrCode
          :value="qrCodeUrl"
          :logo="{
            src: 'https://vebn.oss-cn-beijing.aliyuncs.com/vben/logo.png',
            logoSize: 0.2,
            borderSize: 0.05,
            borderRadius: 50,
            bgColor: 'blue',
          }"
        />
      </CollapseContainer>

      <CollapseContainer title="下载示例" class="text-center mb-6 w-1/5 mr-6">
        <QrCode :value="qrCodeUrl" ref="qrRef" :logo="LogoImg" />
        <a-button class="mb-2" type="primary" @click="download">
          下载
        </a-button>
        <div class="msg">
          (在线logo会导致图片跨域，需要下载图片需要自行解决跨域问题)
        </div>
      </CollapseContainer>

      <CollapseContainer title="配置大小示例" class="text-center w-1/5 mr-6">
        <QrCode :value="qrCodeUrl" :width="300" />
      </CollapseContainer>

      <CollapseContainer title="扩展绘制示例" class="text-center w-1/5 mr-6">
        <QrCode
          :value="qrCodeUrl"
          :width="200"
          :options="{ margin: 5 }"
          ref="qrDiyRef"
          :logo="LogoImg"
          @done="onQrcodeDone"
        />
        <a-button class="mb-2" type="primary" @click="downloadDiy">
          下载
        </a-button>
        <div class="msg">要进行扩展绘制则不能将tag设为img</div>
      </CollapseContainer>

      <CollapseContainer title="Antdv QRCode" class="text-center w-1/5 mr-6">
        <QRCode :value="qrCodeUrl" :size="200" />
      </CollapseContainer>

      <CollapseContainer
        title="Antdv QRCode 带icon"
        class="text-center w-1/5 mr-6"
      >
        <QRCode :value="qrCodeUrl" :size="200" :icon="LogoImg" />
      </CollapseContainer>
    </div>
  </PageWrapper>
</template>
<script lang="ts" setup>
import LogoImg from "@/assets/images/logo.png";
import { CollapseContainer } from "@/components/Container";
import { PageWrapper } from "@/components/Page";
import { QrCode, QrCodeActionType } from "@/components/Qrcode";
import { type Nullable } from "@vben/types";
import { QRCode } from "ant-design-vue";
import { ref, unref } from "vue";

const qrCodeUrl = "https://www.vvbin.cn";
const qrRef = ref<Nullable<QrCodeActionType>>(null);
const qrDiyRef = ref<Nullable<QrCodeActionType>>(null);
function download() {
  const qrEl = unref(qrRef);
  if (!qrEl) return;
  qrEl.download("文件名");
}
function downloadDiy() {
  const qrEl = unref(qrDiyRef);
  if (!qrEl) return;
  qrEl.download("Qrcode");
}

function onQrcodeDone({ ctx }: any) {
  if (ctx instanceof CanvasRenderingContext2D) {
    // 额外绘制
    ctx.fillStyle = "black";
    ctx.font = '16px "微软雅黑"';
    ctx.textBaseline = "bottom";
    ctx.textAlign = "center";
    ctx.fillText("你帅你先扫", 100, 195, 200);
  }
}
</script>
